- See
Quads
Origin: Proximal 2/3 of the anterolateral surface of the femur, lower 1/2
of the linea aspera, upper part of the lateral supracondylar
line; Lateral intermuscular septum;
Insertion: By tendons of the rectus and vastus muscles into the superior
border of the patella and by the ligamentum patella into the
tibial tuberosity;
Action: Extends the leg at the knee;
Nerve Supply:
NeRve121[
Femoral ,
L3
>
L2 ,
L4 ;
(See
Innervation )
Synergists:
Rectus Femoris ,
Vastus Medialis ,
Vastus Lateralis ;
Arterial supply: descending br. of lat fem circ
